Surface Fitting Butterfly Catch. No Special Tools Required To Fit. Suitable For Flight CasesDimensions: 124 x 118 x 23mm Fixing Holes: 5mm. This large surface mounting butterfly catch has a tough black finish and is perfect for a variety of applications. The butterfly design ensures that the catch will stay in place- even when subjected to impact or stress. It is easy to install and can be fitted on almost any surface. The tough powder coating provides excellent durability and resists corrosion. Its easy-to-use design makes the surface mounting butterfly catch perfect for any cabinet work and it is easy to retro fit using screws bolts or pop rivets.. butterfly catch-flight case catch